Vulnerability Description
Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | <= 46.0.1 |
| Debian | Debian Linux | 8.0 |
| Opensuse | Leap | 42.1 |
| Opensuse | Opensuse | 13.1 |
| Canonical | Ubuntu Linux | 12.04 |
References
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00055.html
- http://www.debian.org/security/2016/dsa-3600
- http://www.mozilla.org/security/announce/2016/mfsa2016-51.htmlVendor Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h
- http://www.securityfocus.com/bid/91075
- http://www.securitytracker.com/id/1036057
- http://www.ubuntu.com/usn/USN-2993-1
- https://access.redhat.com/errata/RHSA-2016:1217
- https://bugzilla.mozilla.org/show_bug.cgi?id=1271460
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00014.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00055.html
- http://www.debian.org/security/2016/dsa-3600
FAQ
What is CVE-2016-2821?
CVE-2016-2821 is a vulnerability with a CVSS score of 7.5 (HIGH). Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execut...
How severe is CVE-2016-2821?
CVE-2016-2821 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-2821?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Debian Debian Linux, Opensuse Leap, Opensuse Opensuse, Canonical Ubuntu Linux.